US2561548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Torsion spring suspension
Assignee: Ford Motor Co
•
Filing: 1946-01-24
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Granted: 1951-07-24
•
Expires: 1966-01-24
Abstract
No abstract record available.
Inventors
- 👤 John J Wharam
- 👤 Jerome J Felts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:27
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/02; F16F1/14; F16F1/16; B; B60; B60G; B60G11/00; B60G11/18; B60G11/181
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US493677A
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US1583291A
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US2103590A
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FR767598A
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US2060015A
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US2210241A
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US2080969A
Cited
GB446985A
Cited
US2083085A
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US2173974A
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US2344983A
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US2299935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |